20079850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 43175808

約数和(自身を除く): 23095958

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 103, 175, 206, 350, 515, 557, 721, 1030, 1114, 1442, 2575, 2785, 3605, 3899, 5150, 5570, 7210, 7798, 13925, 18025, 19495, 27850, 36050, 38990, 57371, 97475, 114742, 194950, 286855, 401597, 573710, 803194, 1434275, 2007985, 2868550, 4015970, 10039925, 20079850]

約数ペア:

[(1, 20079850), (2, 10039925), (5, 4015970), (7, 2868550), (10, 2007985), (14, 1434275), (25, 803194), (35, 573710), (50, 401597), (70, 286855), (103, 194950), (175, 114742), (206, 97475), (350, 57371), (515, 38990), (557, 36050), (721, 27850), (1030, 19495), (1114, 18025), (1442, 13925), (2575, 7798), (2785, 7210), (3605, 5570), (3899, 5150)]